Interpolating circuit for submarine cable operation



g- 1932- H. J. ROSENBERGER I 1,873,044

INTERPOLATING CIRCUIT FOR SUBMARINE CABLE OPERATION Filed March 28, 1951 FIG. 2

FIG. 3

L F L FIG. 4

INVENTOR HAROLD J. aoszuszncsa ATTORN i lay 55, through winding'10 of the receiving twice the line signalling frequency.

relay 60 to negative battery. This circuit energizes windinglO which moves the'tongue to its marking contact 31 and also operates the corrector relay 55 in the standard manner for energizing and controlling the speed of the vibrating tuning fork 21, which vibrates at When' the'lef -hand fork tine is moved to its contact 24 during the proper part of :the fork oscillation, and a positive pulse is being received on the receiving relay, a circuit is then completed from positive'battery through the left-hand fork tine, fork contact. .24,

7 comes in contact with contact 23. At this time a circuit is completed from positive battery j through. the left-hand fork tine, contact 23, tongue 35, spacing-contact 37 of the auxiliary 7 tongue 30, spacing-contact 32 of the 'receiv ing relay 60 through winding 33 of. the aux iliaryrelay 65 to-negative' battery. This cir cuitenergizes winding 33 which moves its tongue 35 to its spacing contact 37. Duringthe second halfofthe' cycle ofthe tuning fork, theleft-handtine moves over and relay65, through winding 38 of the'output relay 70 and also throughwinding 7 of the When-the cable relay is moved to its sequently the auxiliary relay tongue 35 is receiving relay 60. The current through receiving relay'gwinding? energizes relay 60,

, tending to move its tongue 30 to its marking contact 31. If at this time the; tongue 3 is still on its spacing contact 4 of the cable relay '50, the energization of winding 7 will not be able to overcome; the] effect of winding 9"so that the tongue 30 of the receiving relay 60 will still remain under control of the cable relay 5 0.ffIf, on the other hand, the tongue 3 has moved away from its spacing contact 4 and is in its midposition, there. is nocurrent in winding 9,,and -7 is therefore effective and moves the tongue 30 to its marking contactv 31. i

marking contact 5, windinglO of the receivingrelay' 60'is' energized by a similar circuit as is described for winding- 9, andv the tongue 30 is moved'to its markingcontact 31. Sub

moved, to its marking contact by a circuit through winding 34, and the output relay,

tongue 4'5 is moved to its marking contact 46 I by a circuit through winding 39 in the same manner previously described. Also, a circuit is established through receiving relay winding 8 which tends to move its'tongue 30 to its spacing contact 32. If the cable relay tongue 3 hasmoved off of its marking contact andisin -mid-air, the current in .wind-, 7 ing8 is effective to control the receiving relay ,tongue'30; But'if the cable relay 50 is still on its marking contact, the. energization. of p winding 8 is not efiective and the tongue 30 remains onitsmarking contact 31. When 5 no signals are received for a period of several 6 ..11 t pul esth r 21 and. th a x l y r r ',mitted impulses lay control the operation of the receiving relay 60, causing it tovibrate at the linefrequency so that all the unit'single pulses are filled in at the proper polarity.

Thus, the receiving relay 60 is alwaysunder control of the cablegrelay 50 when the tongue 3 of the. cable relay is on either its marking or its spacing contact. During the times when the tongue- 3 is in mid-position,

the receiving relay 60 is'controlled from the fork contact 23 and the tongue 35 of the auxi-' liary relay 65, so that the missingsingle pulses are correctly supplied: by the local circuit of the fork. v L

Fig; 2 "shows the'signals as transmitted to the cable 1,. and Fig. 3 shows the signals f they havebeen corrected gle unit signals supplied. I

Whats claimed 1st; I

for receiving transmitted signals,;and means A signalling system comprising 'ineans including a single source of twopole current;

supply associated with said receiving means for supplying signals transmitted to but not received bysaid receivingmeans.

for receiving transmitted signals, and'means comprislng a tuning fork and a slngle source of two pole current supply for supplying signals transmitted to but not received by said receivingmeans. i a

3. A signall ngsystemcomprislng a relay 2. A signalling system comprising means for receiving transmittedsignals,means com- -fceivingrelay. 7

thereby for supplying signals corresponding tosignalstransmitted to but notreceived by said receiving means.

' prisinga tuning fork and an auxiliary relay ioperated thereby for'control'ling the opera tion of said receiving relay in case the trans are not received by said. rev 4. A signalling system comprising means. for recelvlng transmltted signals, means. com: prislng a tuning fork and a relayv controlled A signalling'system comprising means A for receiving impulses transmitted'at a certain' frequency, meansQcOmPriSing a tuning fork vibrating at approximately twice the frequency of the transmitted impulses to sup ply impulses corresponding to the transmitted impulses whichare transmitted to but notreceived by. saidre ceiving means.

6. A signalling system comprising a relay responsiveto transm1ttedpulses,.a second re-':

lay operated by said first relaywhen'it re-'-' sponds, and means comprising a vibrating tuning fork forfoperating said second ay when the first said relaydoes not 'respond' t'o said pulses.,r. I 1

7. A signalling systeni comprising a relayqw responsive to ns itt d relseea s ar. lie

lay operated by said first relay when it responds, and means including a single source of current supply for operating said second relay upon failure of said first relay to respond to said transmitted pulses.

8. A signalling system comprising an input relay responsive to transmitted pulses, an output relay for transmitting pulses corresponding to the pulses transmitted to said input relay, a tuning and means comprising said tuning fork and auxiliary relay for causing said output relay to transmit pulses corresponding to those transmitted to the input relay in case said input relay does not respond.

9. A signalling system comprising a feceiving relay provided with a winding for the reception of marking signals and another winding for the reception of spacing signals for causing thev operationof said relay, an I auxiliary winding on said receiving relay for causing its operationin case no signals are received by said other windings.

10. A signalling system comprising a receiving relay provided with two independent windings for receiving signals'to operate said relay, an auxiliary winding for said relay for causing its operation in case no signals are received by either of said other windings.

In witness whereof, I hereunto subscribe my name this 27th day of March 1931.

HAROLD J. ROSENBERGER.

fork and an auxiliary relay, 

